Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway
The 1918–20 pandemic influenza killed 50–100 million people worldwide, but mortality varied by ethnicity and geography. In Norway, areas dominated by Sámi experienced 3–5 times higher mortality than the country’s average. We here use data from burial registers and censuses to calculate all-cause exc...
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ftpubmed:oai:pubmedcentral.nih.gov:9970246 2023-05-15T15:55:13+02:00 Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway Nygaard, Ingrid Hellem Dahal, Sushma Chowell, Gerardo Sattenspiel, Lisa Sommerseth, Hilde Leikny Mamelund, Svenn-Erik 2023-02-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9970246/ https://doi.org/10.1080/22423982.2023.2179452 en eng Taylor & Francis http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9970246/ http://dx.doi.org/10.1080/22423982.2023.2179452 © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) ), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. CC-BY-NC Int J Circumpolar Health Original Research Article Text 2023 ftpubmed https://doi.org/10.1080/22423982.2023.2179452 2023-03-05T02:31:17Z The 1918–20 pandemic influenza killed 50–100 million people worldwide, but mortality varied by ethnicity and geography. In Norway, areas dominated by Sámi experienced 3–5 times higher mortality than the country’s average. We here use data from burial registers and censuses to calculate all-cause excess mortality by age and wave in two remote Sámi areas of Norway 1918–20. We hypothesise that geographic isolation, less prior exposure to seasonal influenza, and thus less immunity led to higher Indigenous mortality and a different age distribution of mortality (higher mortality for all) than was typical for this pandemic in non-isolated majority populations (higher young adult mortality & sparing of the elderly). Our results show that in the fall of 1918 (Karasjok), winter of 1919 (Kautokeino), and winter of 1920 (Karasjok), young adults had the highest excess mortality, followed by also high excess mortality among the elderly and children. Children did not exhibit excess mortality in the second wave in Karasjok in 1920. It was not the young adults alone who produced the excess mortality in Kautokeino and Karasjok. We conclude that geographic isolation caused higher mortality among the elderly in the first and second waves, and among children in the first wave. Text Circumpolar Health Karasjok Kautokeino Sámi PubMed Central (PMC) Karasjok ENVELOPE(25.519,25.519,69.472,69.472) Kautokeino ENVELOPE(23.048,23.048,69.003,69.003) Norway International Journal of Circumpolar Health 82 1 |
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PubMed Central (PMC) |
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English |
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Original Research Article |
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Original Research Article Nygaard, Ingrid Hellem Dahal, Sushma Chowell, Gerardo Sattenspiel, Lisa Sommerseth, Hilde Leikny Mamelund, Svenn-Erik Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
topic_facet |
Original Research Article |
description |
The 1918–20 pandemic influenza killed 50–100 million people worldwide, but mortality varied by ethnicity and geography. In Norway, areas dominated by Sámi experienced 3–5 times higher mortality than the country’s average. We here use data from burial registers and censuses to calculate all-cause excess mortality by age and wave in two remote Sámi areas of Norway 1918–20. We hypothesise that geographic isolation, less prior exposure to seasonal influenza, and thus less immunity led to higher Indigenous mortality and a different age distribution of mortality (higher mortality for all) than was typical for this pandemic in non-isolated majority populations (higher young adult mortality & sparing of the elderly). Our results show that in the fall of 1918 (Karasjok), winter of 1919 (Kautokeino), and winter of 1920 (Karasjok), young adults had the highest excess mortality, followed by also high excess mortality among the elderly and children. Children did not exhibit excess mortality in the second wave in Karasjok in 1920. It was not the young adults alone who produced the excess mortality in Kautokeino and Karasjok. We conclude that geographic isolation caused higher mortality among the elderly in the first and second waves, and among children in the first wave. |
format |
Text |
author |
Nygaard, Ingrid Hellem Dahal, Sushma Chowell, Gerardo Sattenspiel, Lisa Sommerseth, Hilde Leikny Mamelund, Svenn-Erik |
author_facet |
Nygaard, Ingrid Hellem Dahal, Sushma Chowell, Gerardo Sattenspiel, Lisa Sommerseth, Hilde Leikny Mamelund, Svenn-Erik |
author_sort |
Nygaard, Ingrid Hellem |
title |
Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
title_short |
Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
title_full |
Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
title_fullStr |
Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
title_full_unstemmed |
Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
title_sort |
age-specific mortality and the role of living remotely: the 1918-20 influenza pandemic in kautokeino and karasjok, norway |
publisher |
Taylor & Francis |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9970246/ https://doi.org/10.1080/22423982.2023.2179452 |
long_lat |
ENVELOPE(25.519,25.519,69.472,69.472) ENVELOPE(23.048,23.048,69.003,69.003) |
geographic |
Karasjok Kautokeino Norway |
geographic_facet |
Karasjok Kautokeino Norway |
genre |
Circumpolar Health Karasjok Kautokeino Sámi |
genre_facet |
Circumpolar Health Karasjok Kautokeino Sámi |
op_source |
Int J Circumpolar Health |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9970246/ http://dx.doi.org/10.1080/22423982.2023.2179452 |
op_rights |
© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) ), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1080/22423982.2023.2179452 |
container_title |
International Journal of Circumpolar Health |
container_volume |
82 |
container_issue |
1 |
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1766390603473485824 |